Challenge #238: Ideal Gases Don't Exist

[LiuZhang]

Spoiler

Learning a few more use cases of interface tools.

[TonyAndriani]

Reposting under my new user ID.

[duartepimentel]

Nice one! Solution attached!

[Abiramm1]

This is a very sloppy solution since I couldn't force the user to only pick 3 checks (I did leave a note however!).

[Abiramm1]

This is the actual app

[MariusNikiforovas]

Took some time to figure out how to configure the Error Message tool, but got there in the end:

Spoiler

[scoles0617]

My solution:

[FrederikE]

Spoiler

[mmontgomery]

Challenge #238:

[mpennington]

Took me longer than I would've liked, but I got it and I think works well.

Spoiler